Reply To: Blocking Fitting

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November 24, 2020 at 10:54 am #20886
Keymaster
A unidirectional blocking valve usually will stop flow in one direction when engaged, functioning as a check valve. A bidirectional blocking valve usually is a valve that stops flow in both directions when engaged. I can not give any guidance on application suitability, except that pilot line connections can be more complicated for bidirectional blocking valves.